+ void gatherFromCurrentThread(ConservativeRoots&, JITStubRoutineSet&, CodeBlockSet&, void* stackOrigin, void* stackTop, RegisterState& calleeSavedRegisters);
+
+ void tryCopyOtherThreadStack(Thread*, void*, size_t capacity, size_t*);
+ bool tryCopyOtherThreadStacks(MutexLocker&, void*, size_t capacity, size_t*);
+